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An organic compound which has the empirical formula CHO has an approximate molar mass of 145 g/mol. What is its probable molecular formula?
Car manufacturers are developing engines that use H2 as fuel. In locations where hydroelectric plants produce inexpensive electric power, the H2 can be made industrially by the electrolysis of water.
How much heat energy is needed to raise the temperature of 2.01 Kg of this oil from 23 C to 191 C?
Propose a mechanism for the addition of bromine and water to cyclopentene. Be sure to show how the trans product results
From the following chemical equation determine how many grams of Ca(OH)2 you would need to react with 6.26 moles of HBr. How many grams of water will be made
A 3.5514 g of a chromium oxide was found to contain 2.4299 g of chromium and 1.1215 g oxygen. What is the empirical formula for this chromium oxide
Explain why step uniformity is so important for stairways
a what is the concentration of the atmosphere in molecules per milliliter at stp?b at a height of about 150km the
A pound of coffee beans yields 53 cups of coffee (4 cups = 1 ). How many milliliters of coffee can be obtained from 1 of coffee beans?
Lets say you have an mRNA sequence. Then you have several other mRNA sequences that are very similar to the original mRNA
How do the enthalpy of dissolution, the crystal lattice energy, and the solvation energy of the two salts relate to these experimental observations?
Completely neutralizes stomach acid (HCl, .10M) How much carbon dioxide is made at STP conditions (37C, 767 torr, 100% humid) by ingesting one 1.834 gram tablet
2Al(s) + 6HCl(aq) 2AlCl3(aq) + 3H2(g) According to the equation above, how many grams of aluminum are needed to completely react with 3.93 mol of hydrochloric acid
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